.box{
	width: 900px;
	margin-left: 100px;
}
li{
	float: left;
	width: 80px;
	list-style: none;
	text-align: center;
	background: #6495ED;
	border: 0.2px solid white; /*边框*/
}
a{
	text-decoration: none;
	color: white;
}
hgroup{
	padding-top: 10px;
}
